20606526510 has 64 divisors (see below), whose sum is σ = 50557746240. Its totient is φ = 5373665280.

The previous prime is 20606526497. The next prime is 20606526517. The reversal of 20606526510 is 1562560602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20606526517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284046 + ... + 349134.

It is an arithmetic number, because the mean of its divisors is an integer number (789964785).

Almost surely, 2^20606526510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20606526510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25278873120).

20606526510 is an abundant number, since it is smaller than the sum of its proper divisors (29951219730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20606526510 is a wasteful number, since it uses less digits than its factorization.

20606526510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65333.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 20606526510 in words is "twenty billion, six hundred six million, five hundred twenty-six thousand, five hundred ten".